.product {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  color: #1a1a1a;
  margin-bottom: 20%;
}
.product .pro-text div {
  width: 100%;
  text-align: center;
  font-size: 24px;
  margin-bottom: 50px;
}
.product .pro-text h4 {
  margin-top: 80px;
  margin-bottom: 20px;
  width: 100%;
  text-align: center;
  font-size: 32px;
}
.product .pro-swiper {
  padding-left: 0;
  width: 100%;
  margin-top: 39px;
}
.product .pro-swiper .pro-swiper-container {
  width: 100%;
  position: relative;
}
.product .pro-swiper .pro-swiper-container .swiper-wrapper {
  width: 100% !important;
}
.product .pro-swiper .pro-swiper-container .swiper-wrapper .swiper-slide {
  width: 32%;
  height: 32%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}
.product .pro-swiper .pro-swiper-container .swiper-wrapper .swiper-slide:nth-child(n + 1) {
  margin-right: 2%;
}
.product .pro-swiper .pro-swiper-container .swiper-wrapper .swiper-slide img {
  width: 100%;
  height: 100%;
}
.product .pro-swiper .pro-swiper-container .pro-swiper-button-prev {
  width: 72px;
  height: 105px;
  position: absolute;
  left: -95px;
  top: 120px;
}
.product .pro-swiper .pro-swiper-container .pro-swiper-button-prev img {
  width: 100%;
}
.product .pro-swiper .pro-swiper-container .pro-swiper-button-next {
  width: 72px;
  height: 105px;
  position: absolute;
  right: -95px;
  top: 120px;
}
.product .pro-swiper .pro-swiper-container .pro-swiper-button-next img {
  width: 100%;
}
.product .pro-main {
  color: #fff;
  display: flex;
  justify-content: space-between;
  background-color: #fff;
  align-items: center;
}
.product .pro-main .item {
  height: 480px;
  flex: 0.32;
  position: relative;
  overflow: hidden;
}
.product .pro-main .item img {
  width: 100%;
  height: 100%;
}
.product .pro-main .item .cloak,
.product .pro-main .item .cloak-center {
  position: absolute;
  bottom: -210px;
  left: 0;
  background-color: #434343;
  z-index: 9;
  transition: transform 0.3s linear;
}
.product .pro-main .item .cloak div,
.product .pro-main .item .cloak-center div {
  width: 100%;
  height: 80px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  font-size: 24px;
}
.product .pro-main .item .cloak p,
.product .pro-main .item .cloak-center p {
  padding: 0 30px 30px 50px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  font-size: 18px;
  line-height: 25px;
}
.product .pro-main .item .cloak-center {
  bottom: 480px;
}
.product .pro-main .item:hover .cloak {
  transform: translateY(-100%);
}
.product .pro-main .item:hover .cloak-center {
  transform: translateY(100%);
}
.swiper-container {
  width: 100%;
}
.swiper-container img {
  width: 100% !important;
}
.swiper-container .swiper-pagination-bullet-active {
  background-color: #fff;
}
.about {
  height: 863px;
  color: #ffffff;
  background-color: #434343;
}
.about .about-top {
  height: 145px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.about .about-top .about-logo {
  width: 30%;
  height: 100%;
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  background-color: #fff;
}
.about .about-top .top-text {
  height: 100%;
  display: flex;
  flex-flow: column;
  justify-content: space-evenly;
  margin-left: 10%;
}
.about .about-top .top-text :nth-child(1) {
  font-size: 34px;
}
.about .about-top .top-text :nth-child(2) {
  font-size: 18px;
}
.about .about-main {
  height: 633px;
  display: flex;
  justify-content: space-between;
}
.about .about-main .main-left {
  line-height: 40px;
  flex: 0.4;
  display: flex;
  flex-flow: column;
  justify-content: space-around;
  font-size: 22px;
}
.about .about-main .main-left div {
  padding-left: 10%;
  font-size: 34px;
  border-left: 7px solid #fff;
}
.about .about-main .main-left p {
  word-wrap: wrap;
  font-size: 22px;
  text-indent: 2em;
}
.about .about-main .main-left .seemore {
  padding-left: 0;
  width: 160px;
  height: 43px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: none;
  background-color: #fff;
  font-size: 20px;
  color: #434343;
  cursor: pointer;
}
.about .about-main .main-left .seemore a {
  padding: 10px 5px 10px 20px;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #434343;
}
.about .about-main .main-left .seemore a span {
  font-size: 20px;
}
.about .about-main .main-left .seemore a > span:nth-child(2) {
  margin-left: 20px;
  width: 33px;
  height: 33px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: #434343;
}
.about .about-main .main-right {
  flex: 0.6;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.about .about-main .main-right div {
  width: 70%;
  height: 354px;
  background-color: #fff;
  position: relative;
}
.about .about-main .main-right div img {
  width: 100%;
  position: absolute;
  left: 10%;
  top: -20%;
}
.big-img {
  width: 100%;
  margin-top: 210px;
}
.big-img img {
  width: 100%;
}
@media screen and (max-width: 768px) {
  .swiper-container {
    position: relative;
    width: 100%;
  }
  .swiper-container .swiper-wrapper {
    width: 100%;
  }
  .swiper-container .swiper-wrapper .swiper-slide img {
    width: 100%;
  }
  .product {
    margin-bottom: 30px;
  }
  .product .pro-text h4 {
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 2px;
  }
  .product .pro-text div {
    font-size: 12px;
    margin-bottom: 16px;
  }
  .product .pro-swiper {
    width: 80%;
    margin: 0 auto;
    margin-top: 0;
  }
  .product .pro-swiper .pro-swiper-container {
    width: 100%;
  }
  .product .pro-swiper .pro-swiper-container .swiper-wrapper {
    width: 100%;
  }
  .product .pro-swiper .pro-swiper-container .swiper-wrapper .swiper-slide img {
    width: 84px;
  }
  .product .pro-swiper .pro-swiper-container .pro-swiper-button-prev {
    width: 20px;
    height: 29px;
    position: absolute;
    left: -8%;
    top: 40%;
    transform: translateY(-50%);
  }
  .product .pro-swiper .pro-swiper-container .pro-swiper-button-prev img {
    width: 20px;
    height: 29px;
  }
  .product .pro-swiper .pro-swiper-container .pro-swiper-button-next {
    width: 20px;
    height: 29px;
    position: absolute;
    right: -8%;
    top: 40%;
    transform: translateY(-50%);
  }
  .product .pro-swiper .pro-swiper-container .pro-swiper-button-next img {
    width: 20px;
    height: 29px;
  }
  .product .mb-pro-main {
    width: 100%;
    padding: 0 8px;
  }
  .product .mb-pro-main .item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10%;
  }
  .product .mb-pro-main .item:nth-child(3) {
    margin-bottom: 0;
  }
  .product .mb-pro-main .item a img {
    width: 127px;
    height: 154px;
  }
  .product .mb-pro-main .item .cloak,
  .product .mb-pro-main .item .cloak-center {
    padding: 0  0 0 20px;
    padding-top: 20px;
  }
  .product .mb-pro-main .item .cloak div,
  .product .mb-pro-main .item .cloak-center div {
    font-weight: 700;
    font-size: 14px;
    text-align: center;
    color: #000;
    margin-bottom: 4%;
  }
  .product .mb-pro-main .item .cloak p,
  .product .mb-pro-main .item .cloak-center p {
    font-size: 12px;
    line-height: 17px;
    text-indent: 2em;
  }
  .product .mb-pro-main .item .cloak-center {
    padding: 0 20px 0  0;
    padding-top: 20px;
  }
  .about {
    height: 260px;
    width: 100%;
    padding: 0 8px;
  }
  .about .about-top {
    width: 100%;
    display: flex;
    align-items: center;
    height: 35px;
    justify-content: flex-start;
  }
  .about .about-top .about-logo {
    height: 35px;
    width: 30%;
  }
  .about .about-top .about-logo img {
    width: 87px;
  }
  .about .about-top .top-text {
    margin-left: 10%;
  }
  .about .about-top .top-text div:nth-child(1) {
    font-size: 12px;
  }
  .about .about-top .top-text div:nth-child(2) {
    font-size: 10px;
  }
  .about .about-main {
    margin-top: 10px;
    display: flex;
    justify-content: space-around;
    height: 200px;
  }
  .about .about-main .main-left {
    margin-left: -8px;
    flex: 0.6;
  }
  .about .about-main .main-left div {
    font-size: 14px;
    border-left: 3px solid #fff;
    height: 14px;
    line-height: 14px;
  }
  .about .about-main .main-left p {
    font-size: 12px;
    line-height: 18px;
  }
  .about .about-main .main-left .seemore {
    width: 95px;
    height: 25px;
  }
  .about .about-main .main-left .seemore a {
    width: 100%;
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2px 4px ;
  }
  .about .about-main .main-left .seemore a span {
    font-size: 10px;
  }
  .about .about-main .main-left .seemore a span:nth-child(1) {
    width: 70%;
    height: 100%;
    line-height: 21px;
    margin-left: 10px;
    font-size: 12px;
  }
  .about .about-main .main-left .seemore a span:nth-child(2) {
    margin-left: 0;
    width: 20px;
    height: 18px;
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
  .about .about-main .main-left .seemore a span img {
    width: 10px;
    height: 10px;
  }
  .about .about-main .main-right {
    flex: 0.3;
  }
  .about .about-main .main-right div {
    width: 113px;
    height: 76px;
  }
  .about .about-main .main-right div img {
    width: 113px;
    height: 76px;
  }
  .big-img {
    width: 100%;
    margin-top: 10%;
    margin-bottom: -4%;
  }
  .big-img img {
    width: 100%;
  }
}
